United States Coastal Region

Massachusetts Sea Water Temperature

Compare sea surface temperatures across 135 top coastal destinations in Massachusetts. Check below for live marine observations, wave conditions, and monthly averages.

Beaches & Swimming Spots in Massachusetts— page 4 of 6

James Bay

Menemsha Beach

A temperate beach on the James Bay, warmest around August at about 21.4°C.

Historical Sep Avg:19.9°C(67.8°F)
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James Bay

Millway Beach

A cool beach on the James Bay, warmest around August at about 21.3°C.

Historical Sep Avg:19.6°C(67.3°F)
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James Bay

Monument Beach

A temperate beach on the James Bay, warmest around August at about 21.8°C.

Historical Sep Avg:20.2°C(68.4°F)
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James Bay

Nahant Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Nauset Beach

A cool beach on the James Bay, warmest around August at about 20.1°C.

Historical Sep Avg:18.3°C(64.9°F)
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James Bay

Nauset Light Beach

A cool beach on the James Bay, warmest around August at about 20.1°C.

Historical Sep Avg:18.3°C(64.9°F)
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James Bay

Newcomb Hollow Beach

A cool beach on the James Bay, warmest around August at about 20.1°C.

Historical Sep Avg:18.3°C(64.9°F)
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James Bay

Nobska Beach

A temperate beach on the James Bay, warmest around August at about 21.8°C.

Historical Sep Avg:20.2°C(68.4°F)
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James Bay

North Scituate Beach

A cool beach on the James Bay, warmest around August at about 19.3°C.

Historical Sep Avg:17.8°C(64°F)
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James Bay

North Shore Beach

A temperate beach on the James Bay, warmest around August at about 21.8°C.

Historical Sep Avg:20.2°C(68.4°F)
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James Bay

Orient Heights Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Pearce Lake Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Pebble Beach

A cool beach on the James Bay, warmest around August at about 18.9°C.

Historical Sep Avg:17.5°C(63.5°F)
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Coastal Waters

Pest House Shore

A cool beach on the Coastal Waters, warmest around August at about 20.6°C.

Historical Sep Avg:19.1°C(66.4°F)
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James Bay

Phillips Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Pierce Beach

A temperate beach on the James Bay, warmest around August at about 21.8°C.

Historical Sep Avg:20.2°C(68.4°F)
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James Bay

Pleasant Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Pleasure Bay Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Pond Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Post Island Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Preston Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
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James Bay

Race Point Beach

A cool beach on the James Bay, warmest around August at about 19.7°C.

Historical Sep Avg:18°C(64.4°F)
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Coastal Waters

Rest House Shore

A cool beach on the Coastal Waters, warmest around August at about 20.6°C.

Historical Sep Avg:19.1°C(66.4°F)
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James Bay

Rice's Beach

A cool beach on the James Bay, warmest around August at about 18.9°C.

Historical Sep Avg:17.5°C(63.5°F)
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